MERTENSIA BORAGINACE.E 491 



PNEUMARIA 



the throat, the tube about twice as long as the calyx, and longer than the 

 limb: filaments flattened, slightly longer than the anthers: style filiform, usu- 

 ally somewhat exserted: nutlets rounded. In damp woods, California to 

 Alaska, and Hudson Bay to Michigan, Nebraska and the Rocky Mountains. 



M. platyphylla Heller Bull. Torr. Bot. Club xxvi, 548. Stems weak, 

 16-30 inches high, branched above, the branches slender and spreading: leaves 

 all thin, light green, papillately roughened above; radical leaves usually 

 about a foot long including the petiole, of about 8 inches, which is rough on 

 the margins; blade broadly ovate, 3-4 inches broad, abruptly acuminate, usu- 

 ally cordate at base; lower stem-leaves broadly ovate, abruptly acuminate, 

 on petioles about an inch long; upper ones ovate-lanceolate, gradually acu- 

 minate, sessile or nearly so, contracted at base: flowers in loose terminal pan- 

 icles: pedicels slender, 3-7 lines long, pubescent with short appressed hairs: 

 sepals linear-lanceolate, 3-4 lines long, ciliate: corolla bright blue, or turning 

 rose-color 6-8 lines long, broad funnelform, the tube about 2 lines long, 

 the acutish lobes with broad sinuses at base: anthers oblong: style slightly 

 exserted. In rich moist ground, western Washington and Oregon, 



M. uutans. Stems simple, 1-8 from the crown of a thick branching root, 

 3-10 inches high, very leafy to the top: leaves oblong to lanceolate or the 

 1 west sometimes spatu late, the largest ones in the middle of the stem 1-3 

 inches long, mostly sessile by a broad base or the lowest sometimes petioled, 

 all papillose-granulate above, not at all pubescent: flowers in a dense terminal 

 drooping panicle, sessile or on short pedicels: sepals lanceolate, barely 2 

 lines long, obscurely ciliate: corolla 6-8 lines long, funnelform, with a broad 

 purple or pinkish tube twice or thrice as long as the calyx: filaments as oroad 

 as and fully as long as the anthers: style slender, often slightly exserted. On 

 the north side of high ridges, eastern Oregon and Washington. 



15 PNEUMARIA Hill Veg. Syst. vii, 40, t. 36. 



Glabrous fleshy perennials with alternate leaves and small blue 

 pinkish or white flowers in loose terminal leaf y-br acted racemes. 

 Calyx-lobes somewhat enlarged in fruit. Corolla tubular-campanu- 

 late, crested in the throat, 5-lobed, the lobes imbricated in the bud, 

 slightly spreading. Filaments scarcely exserted. Ovary 4-divid- 

 ed ; style slender. Nutlets erect, fleshy, attached just above their 

 bases to the somewhat elevated gynobase, smooth and shining, 

 acutish-margined, becoming utricular-like when mature. 



P. maritima Hill 1. c. 40, t. 37, fig. 3. Very smooth, pale and glau- 

 cous, much branched and spreading; leaves fleshy, ovate, obovate, or spat" 

 ulate-oblong, an inch or two long, upper surface becoming pustulate : flowers 

 small, 3 or 4 lines long, on long and slender pedicels : tube of the blue or 

 whitish corolla hardly as long as the limb and shorter than the ovate-tri- 

 angular lobes of the calyx, the crests in the throat evident : filaments rather 

 narrower and much longer than the panthers : nutlets acute, fleshy -herba- 

 ceous, in a^e becoming utricular, the scar small. Along the Coast, 

 Puget Sound to Alaska, and Hudson^Bay^to.New England also Europe. 



16 MYOSOTIS. L. Gen. n/180. 



LOW T annual biennial or perennial herbs with alternate leaves 

 and small blue pink or white flowers in^so called spikes or racemes. 

 Calyx 5-parted or 5-cleft. Corolla salverform or rotate, the tube 

 rarely surpassing the calyx, the throat with small and blunt crests 

 at the base of the small and rounded lobes : these convolute in the 



